Stanchion lock



Patented lexv. i923..

i it.

time

s'renoriion Loon.

Application led May 27,

To all whom 21;," may ,cof/C i:

Be it known tl'iat l, Bon 'om' hliusnrmn, citizen of the l'lnited States, and resident oi' ldaterloo. in the county of f l'eii'erson and State o? lVisconsin, have invente.. new and useful improvements in Stanchion Locks, oi which the following is a descriptione rei-. erence being had to the accompanying drawings, which are a part ot this speciication.

'lhis invention relates stanchion locks particularly to that type oi. stanchion which in combination with an upper substantially horizontally relatively fined member is provided with two vertical members, one oty which is fixed and the other oi' which is piv otally connected at the bottom and adapted to swing laterally int-o open and closed position.

rlhe primary object of this invention is to` provide a lock for the swinging member olt simple and strong construction which will operate automatically to loclr the swinging member in its closed position when the latter is moved thereto and which, furthermore, will reliably and eliectively maintainl said swinging member in its locked position against the strains' set up in the stanchion members by the animal rubbing and pushing thereagainst.

A further object of the invention is to provide a lock which may be conveniently released from either side oit the stanchion.

The invention consists in the novel constructions, arrangements and devices to be hereinafter described and claimed :tor carrying out the above stated objects and such other objects as will appear from the Jiollowing description of certain preferred embodiments illustrated in the accompanying drawings, wherein- F ig. l is a side elevational view of a lock embodying the principles of the invention., certain parts thereof being shown in section and as applied to a stanchion of the type mentioned only certain fragmentary portions thereof being shown;

F ig. 2 is an enlarged sectional view taken on the line 2-2 of Fig. l; and

F ig. 3 is a sectional view taken on the line 3-3 of Fig. 2.

Like characters of reference designate like parts in the several views.

In the drawings 5 represents the upper substantially horizontally relatively fixed member and 6 represents the upper end oi ism. semina. vasta the laterally swingingly mountedmember ci the stanchion.

Irlhe member 5 is preierablytubular and is provided on its under side with. a longitu .,inaliy vextending slot '7, The member 5 is provided with a catch member which is pi erably in the 'form of a collar 8 adjustaoly mounted thereon by screws 9. A transverse member, designated as a whole by the reference numeral ith mounted in and adjarent the upper end oi the swinging member 5. i latch member il, substantially of the shape shown in h ig. l, is loosely mounted on the transverse member l0, as will be hereinafter described, and is adapted to slide in the slot '7 oit the member 5 when the swinoing'member 6 is moved laterally. A pair outstandingears or lugs l2 are provided on and adjacent the free end oi the latch to limit downward move-ment thereof. The lower portion'oi the collar 8 extends across the slot 7, as clearly shown in `Eig. l and the free end et the latch is beveled at 123 so' that the latch will easily ride over the catch when the swinging member 6 is moved into its closed position. A pair of downwardly projecting lugs la are provided on the under side of the latch memberwhich are `adapted to bear against the respective sides oiLA the catch, as clearly shown in Fig. l, when vthe latch is in its locking position. The transverse member l() comprises a central rod member l5 on which a pair or". spaced bushings i6' are mounted, the bushings being held in position by washers l? bearing against the cuter ends oi the bushings and effectively held thereagainst by upsetting 'the extremities oi the rod member l5, as shown at 18, see Fig. rhe latchll. is loosely mounted on the member l5. The inner ends of the bushings bear against. the respective sides of the latch. ln the embodiment shown in Figs. l to 8 ci the drawings, interlocking means are provided between the latch and the bushings7 the latch being provided on each side with a pair oi lateral extending lugs 19 which are adapted to slip into suitable recesses 20 formed in member to limit out-Ward ed on the outer ends thereof, and rigidly connected thereto by upsetting portions oi" the ends of the bushings into recesses 2i formed in the disks.

To prevent the latch from being jarred out of its looking position by the animal rubbing or pressing against the stanehion' members, a spring 22 is preferably provided to hold the latch in locking engagement with thecatch. This spring is preferably coiled about the bushings 16, the end 23 thereoil being fixed to the latch and the end 2Lithereof being 'lined to the stanchion member 6. Y

In order to guide the swingable stanchion member 6 on the horizontal portion of the iiXed member and to prevent strain due to the animal rubbing and pressing against the. stanehion member i'roni being transmitted tothe latch member, the stanehion member 6 is preferably provided with pair ot upstanding arms 27 which areadapted to slidingly engage the respective sides oi" the tubular member 5, see Fig. 2.

li desired, a plug 2S may be secured to the movement or the swinging member e, plug cooperating 'with the lugs 1.2 provided on 4the i'ree end of the latch and therefore prevents the latch 'from slipping entirely out ot the slot 7. ll rom the foregoing description it Will be apparent that an kautomatically operating loelr oii simple and strong construction has been pro-vided which may be conveniently released troni either side ot the stanchion.

l claim:

l. In combination, a laterally sivingingly mounted stanohion member, an upper horizontal hired sta-nchion member, a catch on i nazione-e said fixed member, a transverse member journaled in and adjacent the upper end or' said swinging member, a lateh on said transverse member, said transverse member comprising a central member and a pair'o bush* ings on said central member, said bushings being loosely mounted on said central member so that their inner ends bear against the respective sides oit said latch, and interlocking means on said latch and the inner ends of said bushing to insure lifting of the latch when said bushings are rotated in the proper direction.

2. ln combination, a laterally swingingly mounted stanchion member, an upper hori- Zontal ixed tubular stanchion member, said tubular member having a. longitudinally eX- tending slot in its under side, a catch on said tubular member, a transverse member jonrnaled in and adjacent the upper end of said swinging member, a latch on said transverse member and adapted to slide in said slotl and to slip into holding engagement with said catch When said swinging memberis moved to closed position, said ytransverse member comprising a central member and a pair oi5 bushings on said central member, saidb-ushings being loosely mounted on said central member so that their inner ends bear against tie respective sides ot said latch, and interlocking means on said latch and the inner ends oi" said lbushingsfto insure lifting of the latch when said bushings are rotated'in the proper direction.

ln' testimony whereof, l afix'my signature.

ROBERT MINES-HULL. 

